Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“I wish I could pin messages though.”
Google Play · 5/5 · 2026-06-30

Checks (re-run on this request)

✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
✓ Public transparency log — Sigstore Rekor log index 2541942774

Proof data

Record hash (SHA-256): fe889bea432a563d1bf7b0ecd6398e06a6b16662a7814f2d649ae5f19e3cad91
Signature (Ed25519, base64): T/awjIHs3iSIBjTGk6uvL4CizXsE6WEN1HN9lUIVXjXcJvuR6X/DLKDPSjwjX6q6W11tlXnSdn2mII6/DrSRCQ==
Merkle root: 0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91
Merkle path: ["fe8a24aef5afa4dfaec5df3e44f5b7665f6ea5c2671ef169c23af5482e62b2f0","17ae5a3244a1fa9a0fa0890d46739e9c0cba4acecd3bf6a1ac9d1f0d15fbe687","62e4a7bbec6d4111bf5720f352faa6002884f1a22da3d6f898c9688af8f5e261","425f680a50d48bbb4063fba53f4ad2bdcec08472b0d0cf2f066265fcaebe5a36","d9e3829b86d172e7905c3e332568837a7aab1f3b7afac61b27c319ff26df0039","c076509bedf37ae39b9ca199d4669477edb5303c47e75be199c25b87116ae248","954be2f326802e5558ffa0496ecfb22cf758d6a5a896c6227a7d68f98ca1e4cb","aaf8da63a2cfd8a62f08cc9aa7151a266d450497037d69ddfe492fec3243b0de","34307bb49e15cacecb311aea3aae7d7d379c493ae2052ae3141a1245b4b5d260","35f0e8451f7e68be5c9eefbdbe96b74ee443546634aa36c7f9d982590aaf6ae6","1dd5c867a33c54be1170a7ccc2c4ecd237a04e44188420e38ee9c3c7d2fb0338","9df2bf9d1d071ae591fbe5cbeff73846c3d5554d23a78779c9dda4580ec264e2"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…
Expected log hash: 4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record: {"dataset_version":"v1787277864570","kind":"published-quote","locale":"en","page":"brand:threema","quote":"I wish I could pin messages though.","rating":5,"review_date":"2026-06-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (0fdf8a945cf3…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.